You will usually gain new Power Cards via Growth, but some Power effects can grant them. New Power Cards always go into your hand.

Whenever you’re told to “Gain a Power Card”:

Choose whether you’re gaining a Minor or Major Power.

Draw 4 cards from that deck. If you would draw from an empty deck, first shuffle that deck’s discard pile to make a new deck.

Keep one drawn Power Card in your hand. Discard the others into the discard pile for that deck.

After you get a new Major Power, you must Forget — permanently lose — one of your Power Cards. Put the Forgotten Power Card into the discard pile for its deck. Place it under your Spirit Panel if it is one of your Unique Powers.